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server: Add a heuristic to avoid computing surface regions when no pixel format has been set.

This commit is contained in:
Alexandre Julliard 2012-10-09 15:17:57 +02:00
parent a52ebb158e
commit d0c9d22371
1 changed files with 17 additions and 1 deletions
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18
server/window.c
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@ -102,6 +102,7 @@ struct window
#define PAINT_ERASE 0x0020 /* needs WM_ERASEBKGND */
#define PAINT_NONCLIENT 0x0040 /* needs WM_NCPAINT */
#define PAINT_DELAYED_ERASE 0x0080 /* still needs erase after WM_ERASEBKGND */
#define PAINT_PIXEL_FORMAT_CHILD 0x0100 /* at least one child has a custom pixel format */
/* growable array of user handles */
struct user_handle_array
@ -165,6 +166,14 @@ static inline struct window *get_last_child( struct window *win )
return ptr ? LIST_ENTRY( ptr, struct window, entry ) : NULL;
}
/* set the PAINT_PIXEL_FORMAT_CHILD flag on all the parents */
/* note: we never reset the flag, it's just a heuristic */
static inline void update_pixel_format_flags( struct window *win )
{
for (win = win->parent; win && win->parent; win = win->parent)
win->paint_flags |= PAINT_PIXEL_FORMAT_CHILD;
}
/* link a window at the right place in the siblings list */
static void link_window( struct window *win, struct window *previous )
{
@ -244,6 +253,8 @@ static int set_parent_window( struct window *win, struct window *parent )
/* top-level, attach the two threads */
if (parent->thread && parent->thread != win->thread && !is_desktop_window(parent))
attach_thread_input( win->thread, parent->thread );
if (win->paint_flags & PAINT_HAS_PIXEL_FORMAT) update_pixel_format_flags( win );
}
else /* move it to parent unlinked list */
{
@ -1038,6 +1049,7 @@ static struct region *clip_pixel_format_children( struct window *parent, struct
offset_region( clip, offset_x, offset_y );
if (!intersect_region( clip, clip, parent_clip )) break;
if (!union_region( region, region, clip )) break;
if (!(ptr->paint_flags & (PAINT_HAS_PIXEL_FORMAT | PAINT_PIXEL_FORMAT_CHILD))) continue;
/* subtract the client rect if it uses a custom pixel format */
set_region_rect( clip, &ptr->client_rect );
@ -2238,6 +2250,7 @@ DECL_HANDLER(set_window_pos)
}
win->paint_flags = (win->paint_flags & ~PAINT_CLIENT_FLAGS) | (req->paint_flags & PAINT_CLIENT_FLAGS);
if (win->paint_flags & PAINT_HAS_PIXEL_FORMAT) update_pixel_format_flags( win );
if (get_req_data_size() >= 3 * sizeof(rectangle_t))
{
@ -2256,7 +2269,10 @@ DECL_HANDLER(set_window_pos)
reply->new_ex_style = win->ex_style;
top = get_top_clipping_window( win );
if (is_visible( top ) && (top->paint_flags & PAINT_HAS_SURFACE)) reply->surface_win = top->handle;
if (is_visible( top ) &&
(top->paint_flags & PAINT_HAS_SURFACE) &&
(top->paint_flags & PAINT_PIXEL_FORMAT_CHILD))
reply->surface_win = top->handle;
}